package com.heima.behavior.service.impl;
import java.util.Date;

import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApReadBehaviorService;
import com.heima.model.behavior.dtos.ReadBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApReadBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;

@Service
@Slf4j
public class ApReadBehaviorServiceImpl implements ApReadBehaviorService {
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Autowired
    MongoTemplate mongoTemplate;

    @Override
    public ResponseResult readBehavior(ReadBehaviorDTO dto) {
        //1. 校验参数 文章id必须传
        //2. 根据登录用户id 或 设备id查询行为实体数据(阅读操作可不登录)
        ApUser user = AppThreadLocalUtils.getUser();
        ApBehaviorEntry entry = null;
        if (user==null){
            entry = apBehaviorEntryService.findByUserIdOrEquipmentId(null, dto.getEquipmentId());
        }else {
            entry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        }

        //3. 判断该用户阅读行为是否存在
        Query query = Query.query(Criteria.where("entryId").is(entry.getId()).and("articleId").is(dto.getArticleId()));
        ApReadBehavior apReadBehavior = mongoTemplate.findOne(query, ApReadBehavior.class);
        if (apReadBehavior!=null){
            //4. 存在  将阅读行为的count字段加1 并修改
            Short count = apReadBehavior.getCount();
            Update update = new Update();
            update.set("count",count+1);
            update.set("updatedTime",new Date());
            mongoTemplate.updateMulti(query,update,ApReadBehavior.class);
        }else {
            //5. 不存在  创建阅读行为 并初始化count字段值为 1
            ApReadBehavior readBehavior = new ApReadBehavior();
            readBehavior.setEntryId(entry.getId());
            readBehavior.setArticleId(dto.getArticleId());
            readBehavior.setCount((short) 1);
            readBehavior.setCreatedTime(new Date());
            readBehavior.setUpdatedTime(new Date());
            mongoTemplate.save(readBehavior);
        }

        return ResponseResult.okResult();
    }
}
